For further instructions on Installation/Usage,please check the [FLEUR Homepage](http://www.flapw.de/pm/index.php?n=User-Documentation.Documentation).The rest of this document summarizes only the structure of the FLEUR source code. Didwe mention to check the Homepage?

The source of FLEUR is organized in several subdirectories. Some of them collect code specific for particular features, others coderelevant for crutial steps in the code or simplycode that is usually executed together.Here a short description of the directories:

We agreed to use a unified indentation-width of 3. Hint: [vim](http://vim.wikia.com/wiki/Converting_tabs_to_spaces)[emacs](https://www.gnu.org/software/emacs/manual/html_node/efaq/Changing-the-length-of-a-Tab.html)